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$n$-type semiconductor is formed when:
DifficultMHT CET 2024
View SolutionRefractive index of a solid is observed to have the same value along all directions. Comment on the nature of this solid. Would it show cleavage property?
Easy
View SolutionWhich of the following is a network crystalline solid?
Assertion : On heating ferromagnetic or ferrimagnetic substances,they become paramagnetic.
Reason : The electrons change their spin on heating.
Reason : The electrons change their spin on heating.
DifficultAIIMS 2014
View SolutionMolecules/ions and their magnetic properties are given below.
Molecule/ion Magnetic property $(i). C_6H_6$ $(1).$ Antiferromagnetic $(ii). CrO_2$ $(2).$ Ferrimagnetic $(iii). MnO$ $(3).$ Ferromagnetic $(iv). Fe_3O_4$ $(4).$ Paramagnetic $(v). Fe^{3+}$ $(5).$ Diamagnetic
The correctly matched pairs are:
| Molecule/ion | Magnetic property |
| $(i). C_6H_6$ | $(1).$ Antiferromagnetic |
| $(ii). CrO_2$ | $(2).$ Ferrimagnetic |
| $(iii). MnO$ | $(3).$ Ferromagnetic |
| $(iv). Fe_3O_4$ | $(4).$ Paramagnetic |
| $(v). Fe^{3+}$ | $(5).$ Diamagnetic |
The correctly matched pairs are:
DifficultAIIMS 2016
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